ΔE 8.5, close: similar, with a visible difference side by side. Clear Orange is a little lighter than Firethorn Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Clear Orange is a little lighter than Firethorn Brown.
The same difference applies the other way round: Firethorn Brown is a little darker.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Firethorn Brown on the colour wheel See Clear Orange on the colour wheel
All matches: Firethorn Brown equivalents · Clear Orange equivalents